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https://www.readbyqxmd.com/read/29156617/optimum-thermal-processing-for-extended-shelf-life-esl-milk
#1
REVIEW
Hilton Deeth
Extended shelf-life (ESL) or ultra-pasteurized milk is produced by thermal processing using conditions between those used for traditional high-temperature, short-time (HTST) pasteurization and those used for ultra-high-temperature (UHT) sterilization. It should have a refrigerated shelf-life of more than 30 days. To achieve this, the thermal processing has to be quite intense. The challenge is to produce a product that has high bacteriological quality and safety but also very good organoleptic characteristics...
November 20, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/29155550/carbon-fiber-ionization-mass-spectrometry-for-the-analysis-of-analytes-in-vapor-liquid-and-solid-phases
#2
Min-Li Wu, Te-Yu Chen, Yen-Chun Chen, Yu-Chie Chen
Various ionization methods in mass spectrometry (MS) are available for the analysis of analytes with different properties. Nonetheless, using a single ionization method to analyze mixtures containing analytes with different polarities and volatiles in different phases at atmospheric pressure remains a challenge. Exploring an ionization method that can ionize small organics and large biomolecules with different properties for MS analysis is advantageous. Carbon fiber ionization mass spectrometry (CFI-MS) that uses a carbon fiber bundle as the ion source is useful for the analysis of small organics with low polarities...
November 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29155489/priming-of-cowpea-volatile-emissions-with-defense-inducers-enhances-the-plant-s-attractiveness-to-parasitoids-when-attacked-by-caterpillars
#3
Islam S Sobhy, Toby J A Bruce, Ted C J Turlings
BACKGROUND: The manipulation of herbivore-induced volatile organic compounds (HI-VOCs) via the application of the inducers BTH [benzo (1,2,3) thiadiazole-7-carbothioic acid S-methyl ester] and Laminarin [β-1,3-glucan] is known to enhance the attractiveness of caterpillar-damaged cotton and maize plants to parasitoids. To test if this is also the case for legumes, we treated cowpea with these inducers and studied the effects on HI-VOC emissions and the attraction of three generalist endoparasitoids...
November 20, 2017: Pest Management Science
https://www.readbyqxmd.com/read/29155199/physiochemical-and-functional-properties-of-tiger-puffer-takifugu-rubripes-skin-gelatin-as-affected-by-extraction-conditions
#4
Jinfeng Pan, Qi Li, Hui Jia, Lining Xia, Wengang Jin, Meijun Shang, Chang Xu, Xiuping Dong
The study investigated physiochemical and functional properties of gelatins from tiger puffer skin (GTPS) extracted with warm-water method at 45, 55 and 65°C for 3, 6 and 12h. GTPS45 exhibited strong γ-, β-, α1- and α2-chains, but they faded with the presence of fragments (<80 KDa) in other GTPS. As the increase of temperature and time, amide I and A were shifted to higher wavenumber and their amplitudes in GTPS65-12 decreased. Lightness declined while redness and yellowness were enhanced. Gel strength was in a range of 144...
November 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29154207/particle-size-distribution-and-respiratory-deposition-estimates-of-airborne-perfluoroalkyl-acids-during-the-haze-period-in-the-megacity-of-shanghai
#5
Mengjie Guo, Yan Lyu, Tingting Xu, Bo Yao, Weihua Song, Mei Li, Xin Yang, Tiantao Cheng, Xiang Li
This study presents the particle size distribution and respiratory deposition estimates of airborne perfluoroalkyl acids (PFAAs) during the haze period. Size-segregated haze aerosols were collected from an urban location in Shanghai using an eight-stage air sampler. The samples were analyzed for eight PFAAs using ultra-high-performance liquid chromatography tandem triple quadrupole mass spectrometry. The quantification results showed that the concentrations of particle-bound Σ 8PFAAs ranged from 0.26 to 1...
November 16, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29153652/enzymes-catalyzing-pre-hydrolysis-facilitated-the-anaerobic-fermentation-of-waste-activated-sludge-with-acidogenic-and-microbiological-perspectives
#6
Xiaodong Xin, Junguo He, Lin Li, Wei Qiu
This study investigated acidogenic and microbiological perspectives in the anaerobic fermentation (AF) of waste activated sludge (WAS) pre-hydrolyzed by enzymes catalysis. The enzymes catalysis boosted WAS biodegradability dramatically with nearly 8500 mg/L soluble chemical oxygen demand (SCOD) increase just within 4 h. The volatile fatty acids (VFAs) in the acidogenesis were accumulated effectively with over 3200 mg COD/L in 12 d, which reached 0.687 kWh/kg VSS electricity conversion efficiency (2...
October 4, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29153529/evaluation-of-carinata-meal-as-a-feedstuff-for-growing-dairy-heifers-effects-on-growth-performance-rumen-fermentation-and-total-tract-digestibility-of-nutrients
#7
K Rodriguez-Hernandez, J L Anderson
Our objective was to determine the effects of feeding carinata meal (CRM) compared with distillers dried grains with solubles (DDGS) on growth performance, rumen fermentation, and nutrient utilization in peripubertal dairy heifers. A 16-wk randomized block design experiment with 24 Holstein heifers [6.6 ± 0.7 mo and 218 ± 27 kg of body weight (BW)] was conducted. Treatments diets were (1) 10% cold-pressed CRM and (2) 10% DDGS on a dry matter (DM) basis. The remainder of the diets consisted of grass hay, ground corn, soybean meal, and mineral mix...
November 15, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29153472/inorganic-sulfur-and-mercury-speciation-in-the-water-level-fluctuation-zone-of-the-three-gorges-reservoir-china-the-role-of-inorganic-reduced-sulfur-on-mercury-methylation
#8
Jiang Liu, Tao Jiang, Feiyue Wang, Jinzhong Zhang, Dingyong Wang, Rong Huang, Deliang Yin, Zeyan Liu, Jinzhu Wang
The water level fluctuation zone (WLFZ) of the Three Gorges Reservoir (TGR) in China is a unique geomorphological unit that undergoes annual flooding and drying alternation cycle. The alternating redox conditions within the WLFZ are expected to result in dynamic cycling of reduced sulfur species, which could affect mercury (Hg) methylation due to the high affinity of reduced sulfur species to both inorganic divalent mercury (Hg(II)i) and methylmercury (MeHg). Variations of inorganic sulfur species (measured as acid volatile sulfide, chromium reductive sulfur, elemental sulfur, and water-soluble sulfate), total mercury (THg) and MeHg were studied at two typical WLFZ sites in the TGR from July 2015 to June 2016...
November 15, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29153381/prenatal-tvocs-exposure-negatively-influences-postnatal-neurobehavioral-development
#9
Moonhee Chang, Dongheon Lee, Hyesook Park, Mina Ha, Yun-Chul Hong, Yangho Kim, Boong-Nyun Kim, Yeni Kim, Youn-Hee Lim, Eun-Hee Ha
Prenatal exposure to volatile organic compounds may restrict fetal development and adversely influence infants' life. Therefore, we investigated the relationship between prenatal exposure to total volatile organic compounds (TVOC) and postnatal neurobehavioral development. A subsample of 383 pregnant participants was chosen from the prospective birth cohort study of Mother and Children's Environmental Health Study; MOCEH (N=1,751) from three regions of the Republic of Korea (Seoul, Cheon-an, and Ulsan). Participants were enrolled during their first trimester with informed consent...
November 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29153088/methodology-of-analysis-of-very-weak-acids-by-isotachophoresis-with-electrospray-ionization-mass-spectrometric-detection-anionic-electrolyte-systems-for-the-medium-alkaline-ph-range
#10
Zdena Malá, Petr Gebauer
This work describes for the first time a functional electrolyte system setup for anionic isotachophoresis (ITP) with electrospray-ionization mass-spectrometric (ESI-MS) detection in the neutral to medium-alkaline pH range. So far no application was published on the analysis of very weak acids by anionic ITP-MS although there is a broad spectrum of potential analytes with pKa values in the range 5-10, where application of this technique promises interesting gains in both sensitivity and specificity. The problem so far was the lack of anionic ESI-compatible ITP systems in the mentioned pH range as all typical volatile anionic system components are fully ionized at neutral and alkaline pH and thus too fast to suit as terminators...
January 15, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29152037/complete-genome-sequence-of-pseudomonas-corrugata-strain-rm1-1-4-a-stress-protecting-agent-from-the-rhizosphere-of-an-oilseed-rape-bait-plant
#11
Christin Zachow, Henry Müller, Christina M Laireiter, Ralf Tilcher, Gabriele Berg
10.1601/nm.2592 strain RM1-1-4 is a rhizosphere colonizer of oilseed rape. A previous study has shown that this motile, Gram-negative, non-sporulating bacterium is an effective stress protecting and biocontrol agent, which protects their hosts against abiotic and biotic stresses. Here, we announce and describe the complete genome sequence of P. corrugata RM1-1-4 consisting of a single 6.1 Mb circular chromosome that encodes 5189 protein coding genes and 85 RNA-only encoding genes. Genome analysis revealed genes predicting functions such as detoxifying mechanisms, stress inhibitors, exoproteases, lipoproteins or volatile components as well as rhizobactin siderophores and spermidine...
2017: Standards in Genomic Sciences
https://www.readbyqxmd.com/read/29151355/matrix-effects-originating-from-coexisting-minerals-and-accurate-determination-of-stable-silver-isotopes-in-silver-deposits
#12
Qi Guo, Haizhen Wei, Shao-Yong Jiang, Simon Hohl, Yibo Lin, Yi-Jing Wang, Yin-Chuan Li
Except for extensive studies in core formation and volatile-element depletion processes using radiogenic Ag isotopes (i.e. the Pd-Ag chronometer), recent research has revealed that the mass fractionation of silver isotopes is in principle controlled by physico-chemical processes (e.g. evaporation, diffusion, chemical exchange etc.) during magmatic emplacement and hydrothermal alteration. As these geologic processes only produce very minor variations of δ109Ag from -0.5 ‰ to +1.1‰, more accurate and precise measurements are required...
November 18, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29151153/-2e-6z-9z-2-6-9-pentadecatrienal-as-a-male-produced-aggregation-sex-pheromone-of-the-cerambycid-beetle-elaphidion-mucronatum
#13
Jocelyn G Millar, Robert F Mitchell, Linnea R Meier, Todd D Johnson, Judith A Mongold-Diers, Lawrence M Hanks
An increasing body of evidence suggests that the volatile pheromones of cerambycid beetles are much more diverse in structure than previously hypothesized. Here, we describe the identification, synthesis, and field testing of (2E,6Z,9Z)-2,6,9-pentadecatrienal as a male-produced aggregation-sex pheromone of the cerambycid Elaphidion mucronatum (Say) (subfamily Cerambycinae, tribe Elaphidiini). This novel structure is unlike any previously described cerambycid pheromone, and in field bioassays attracted only this species...
November 18, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/29150895/rapid-and-green-determination-of-58-fragrance-allergens-in-plush-toys
#14
Zhijuan Wang, Qing Zhang, Haiyu Li, Qing Lv, Wan Wang, Hua Bai
This paper presents a simple, rapid, and green method based on a static headspace gas chromatography with mass spectrometry for determining 58 fragrance allergens in plush toys. This study is the first to meet the requirement for simultaneously determining 66 fragrances, except for eight natural extracts restricted by the European Toy Safety Directive 2009/48/EC. A minimal amount of sample (20 mg) and acetone solvent (20 μL) were placed in a headspace vial. A gas-solid equilibration of fragrances between the headspace and the sample was achieved within 10 min under the vapor atmosphere of acetone at 200°C, which allowed the fragrances in the sample to be measured by gas chromatography with mass spectrometry...
November 17, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/29149981/ischemic-preconditioning-produces-comparable-protection-against-hepatic-ischemia-reperfusion-injury-under-isoflurane-and-sevoflurane-anesthesia-in-rats
#15
J S Jeong, D Kim, K Y Kim, S Ryu, S Han, B S Shin, G S Kim, M S Gwak, J S Ko
BACKGROUND: Various volatile anesthetics and ischemic preconditioning (IP) have been demonstrated to exert protective effect against ischemia/reperfusion (I/R) injury in liver. We aimed to determine whether application of IP under isoflurane and sevoflurane anesthesia would confer protection against hepatic I/R injury in rats. METHODS: Thirty-eight rats weighing 270 to 300 grams were randomly divided into 2 groups: isoflurane (1.5%) and sevoflurane (2.5%) anesthesia groups...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149820/mechanisms-of-cardioprotection-of-halogenated-agents-during-extracorporeal-circulation-in-cardiac-surgery
#16
M Ramirez Aliaga, J J Escalona Belmonte, Alicia Ramirez-Fernandez, M Rubio Navarro, J Cruz Manas
The implementation of cardioprotective strategies involving pre-, intra-, and postoperative interventions is key during cardiac surgery requiring extracorporeal circulation (ECC). The primary goal of this study was to review the physiopathology of and protection strategies against myocardial damage secondary to ECC during cardiac surgery. The administration of halogenated anesthetics for cardiac anesthesia is commonplace due to their well-known cardioprotective effects and their capacity to ensure hypnosis...
November 16, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29149662/in-ovo-transformation-of-two-emerging-flame-retardants-in-japanese-quail-coturnix-japonica
#17
Nathalie Briels, Mari E Løseth, Tomasz M Ciesielski, Govindan Malarvannan, Giulia Poma, Sara A Kjærvik, Alexis Léon, Ronan Cariou, Adrian Covaci, Veerle L B Jaspers
Tris(1,3-dichloro-2-propyl) phosphate (TDCIPP) and Dechlorane Plus (DP) are two chlorinated, alternative flame retardants that have been found in wild birds and bird eggs. Little is known about the fate and effect of these compounds in birds, especially during the vulnerable stages of embryonic development. To investigate the ability of birds to biotransform these compounds, an in ovo exposure experiment with Japanese quail eggs was performed. Quail eggs were injected in the yolk sac with 1000ng/g egg of TDCIPP (2...
November 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29148572/effects-of-tartary-buckwheat-polysaccharide-combined-with-nisin-edible-coating-on-the-storage-quality-of-tilapia-oreochromis-niloticus-fillets
#18
Wang Fengping, Huijun Zhang, Jin Wengang, Li Lirong
BACKGROUND: In order to investigate the effect of tartary buckwheat polysaccharide (TBP) combined with nisin edible coatings on the preservation of tilapia (Oreochromis niloticus) fillets, fillets were dip treated with different concentrations of TBP (5 g kg(-1) , 10 g kg(-1) , and 15 g kg(-1) ) combined with nisin and stored at 4°C for 12 days. The pH values, thiobarbituric acid (TBA) contents, total volatile base nitrogen (TVB-N) content, total viable count (TVC), surface colors, textures, and sensory properties of the tilapia fillets at storage were all periodically investigated...
November 17, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29147747/isomers-of-tris-chloropropyl-phosphate-tcpp-in-technical-mixtures-and-environmental-samples
#19
Jimmy W Truong, Miriam L Diamond, Paul A Helm, Liisa M Jantunen
Tris(chloropropyl) phosphate (TCPP) is an environmentally abundant organophosphate ester (OPE). TCPP is comprised of four isomers with seven possible structures, eight CAS numbers, and even more common names. A review of 54 studies reporting one or more TCPP isomers confirmed that the most abundant and most often reported TCPP isomer was tris(2-chloro-1-methylethyl) phosphate, also known as tris(chloroisopropyl) phosphate (TCiPP, referred to hereafter as TCPP1). Full-scan gas chromatography-mass spectrometry (GC-MS) was used to identify the other three isomers numbered here according to their elution order on a non-polar GC column (DB-5): bis(2-chloro-1-methylethyl) (2-chloropropyl) phosphate (TCPP2), bis(2-chloropropyl)(2-chloro-1-methylethyl) phosphate (TCPP3), and tris(2-chloropropyl) phosphate (TCPP4)...
November 16, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29147099/changes-in-quality-characteristics-of-pork-patties-containing-antioxidative-fish-skin-peptide-or-fish-skin-peptide-loaded-nanoliposomes-during-refrigerated-storage
#20
Jing-Jing Bai, Jung-Gyu Lee, Sang-Yoon Lee, Soojin Kim, Mi-Jung Choi, Youngjae Cho
Marine fish skin peptides (FSP) have been widely studied due to their antioxidant and antimicrobial properties. We aimed to use a natural antioxidant, FSP, to replacing synthetic preservatives in a pork patty model, which is safer for human body. Moreover, nano-liposome technology can be applied for masking the fishy smell and improving the stability of this peptide. Therefore, in this study, the effects of FSP and FSP-loaded liposomes (FSPL) on pork patty were evaluated through the tests of thiobarbituric acid reactive substances (TBARS), color, cooking loss, texture, volatile basic nitrogen (VBN), and the pH value, during 14 d of refrigerated (4°C) storage...
2017: Korean Journal for Food Science of Animal Resources
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